JP4935028B2 - Color filter for transflective liquid crystal display device and transflective liquid crystal display device - Google Patents

Description

  The present invention relates to a color filter for a transflective liquid crystal display device used in a transflective liquid crystal display device, and a transflective liquid crystal display device using the color filter for the transflective liquid crystal display device.

  In recent years, a transflective liquid crystal display device utilizing external light reflection and backlight transmitted light has been developed as a liquid crystal display device. The transflective liquid crystal display device uses external light to display. The conventional reflective color liquid crystal display device is advantageous in that it also has a backlight and can perform display (transmission display) using the backlight even when the surroundings are dark.

  In such a transflective liquid crystal display device, since the number of times the transmitted light and the reflected light pass through the liquid crystal is different, in order to improve the visibility of the transmissive display and the reflective display, the transmitted light and the reflected light are used. However, it was necessary to adjust the distance through each liquid crystal. Therefore, for example, as shown in FIG. 3, a transparent resin layer 2 having a predetermined film thickness is formed only in the reflected light region (region indicated by a) used for reflective display in the transparent substrate 1, There is a method of adjusting the optical path difference between the reflected light region (region indicated by a) and the transmitted light region (region indicated by b) by forming the colored layer 3 so as to cover the transparent resin layer 2. Generally used (hereinafter, this structure is also referred to as a multi-gap structure; see Patent Document 1).

  According to this method, for example, as shown in FIG. 4, when the counter substrate 11 is disposed so as to face the color filter 10, the counter substrate 11 and the color filter 10 in the reflected light region (region indicated by a) are arranged. It is possible to adjust the relationship between the gap s and the gap t between the counter substrate 11 and the color filter 10 in the transmitted light region (the region indicated by b), and the optical path difference between reflected light and transmitted light is adjusted. It can be done. Further, according to this method, the thickness of the colored layer formed in the reflected light region can be made thinner than the thickness of the colored layer formed in the transmitted light region. It is also possible to approximate the color characteristics of the light area.

  However, in the color filter for a transflective liquid crystal display device having the multi-gap structure, it is difficult to form a colored layer with a uniform film thickness in the transmitted light region, and usually the center of the colored layer in the transmitted light region. A dent will occur in the vicinity of the part. For this reason, when this color filter for a transflective liquid crystal display device is used in a transflective liquid crystal display device, there is a problem that the alignment of the liquid crystal is disturbed by the dents and high quality display becomes difficult.

Japanese Patent Laid-Open No. 11-242226

  From the above, a high-quality color filter for a transflective liquid crystal display device that has a multi-gap structure and does not disturb the alignment of the liquid crystal when used in a transflective liquid crystal display device, It is desired to provide a transflective liquid crystal display device using a color filter for a transmissive liquid crystal display device.

  The present invention has a transparent substrate, a transparent resin layer formed in a pattern on the transparent substrate, a colored layer formed so as to cover the transparent substrate and the transparent resin layer, and the transparent substrate A color for a transflective liquid crystal display device using a region where the transparent resin layer and the colored layer are laminated as a region for reflected light, and a region where the transparent substrate and the colored layer are laminated as a region for transmitted light Provided is a color filter for a transflective liquid crystal display device, characterized in that a flattening layer is formed on the colored layer formed in the transmitted light region.

  In a color filter for a transflective liquid crystal display device having a general multi-gap structure, a dent is likely to occur near the center of the colored layer in the transmitted light region. For this reason, when this color filter for a transflective liquid crystal display device is used in a transflective liquid crystal display device, this dent may disturb the orientation of the liquid crystal, and high quality display may not be performed. However, according to the present invention, since the planarizing layer is formed on the colored layer in the transmitted light region, the dent generated in the colored layer can be relaxed. Therefore, when the color filter for a transflective liquid crystal display device of the present invention is used in a transflective liquid crystal display device, the alignment of the liquid crystal can be hardly disturbed by the unevenness of the colored layer surface. Furthermore, according to the present invention, the flattening layer makes it possible to finely adjust the optical path difference between the reflected light region and the transmitted light region, thereby enabling a transflective liquid crystal display capable of higher quality display. It can be set as the color filter for apparatuses.

  The present invention provides a transflective liquid crystal display device comprising the above-described transflective liquid crystal display color filter.

  According to the present invention, since the above-described color filter for a transflective liquid crystal display device having a high surface flatness is used, the transflective liquid crystal capable of high quality display with less disorder of the alignment of the liquid crystal. It can be a display device.

  According to the present invention, when used in a transflective liquid crystal display device, it is possible to provide a high-quality color filter for a transflective liquid crystal display device in which the alignment of the liquid crystal is less disturbed by the unevenness of the colored layer surface. . Furthermore, according to the present invention, the flattening layer makes it possible to finely adjust the optical path difference between the reflected light region and the transmitted light region, thereby enabling a transflective liquid crystal display capable of higher quality display. The effect that it can be set as the color filter for apparatuses is also show | played.

  The present invention relates to a color filter for a transflective liquid crystal display device used in a transflective liquid crystal display device, and a transflective liquid crystal display device using the color filter for the transflective liquid crystal display device. Each will be described separately below.

A. First, a color filter for a transflective liquid crystal display device according to the present invention will be described. The color filter for a transflective liquid crystal display device of the present invention includes a transparent substrate, a transparent resin layer formed in a pattern on the transparent substrate, and a color formed so as to cover the transparent substrate and the transparent resin layer. A region where the transparent substrate, the transparent resin layer, and the colored layer are laminated as a region for reflected light, and a region where the transparent substrate and the colored layer are laminated is a region for transmitted light. A color filter for a transflective liquid crystal display device used as the above, characterized in that a flattening layer is formed on the colored layer formed in the transmitted light region.

  As shown in FIG. 1, for example, the color filter for a transflective liquid crystal display device of the present invention includes a transparent substrate 1, a transparent resin layer 2 formed in a pattern on the transparent substrate 1, a transparent substrate 1 and a transparent substrate. Having a colored layer 3 formed so as to cover the resin layer 2 and a planarizing layer 4 formed on the colored layer 3 in a region where the transparent resin layer 2 is not formed (region indicated by b) It is. At this time, an area where the transparent substrate 1, the transparent resin layer 2, and the colored layer 3 are laminated (area indicated by a) is used as an area for reflected light, that is, an area where the transparent resin layer 2 is not formed, A region where the transparent substrate 1, the colored layer 3, and the planarizing layer 4 are stacked (region indicated by b) is used as the transmitted light region. The flattening layer may be formed on the colored layers in all the transmitted light regions, but may be formed only on the colored layers in some transmitted light regions.

  In general, in a color filter for a transflective liquid crystal display device having a multi-gap structure, the colored layer formed on the transmitted light region is likely to be dented. When used in a display device, the alignment of the liquid crystal is disturbed in this portion, and it may be difficult to perform high-quality display. On the other hand, in the present invention, since the flattening layer is formed in the transmitted light region, even if the colored layer has a dent, the dent may be flattened. it can. For this reason, when this color filter for a transflective liquid crystal display device is used in a transflective liquid crystal display device, the orientation of the liquid crystal can be hardly disturbed on the transmitted light region.

  Further, in a color filter for a transflective liquid crystal display device having a multi-gap structure, a transparent resin layer having a uniform film thickness is usually formed on a transparent substrate, and a colored layer of each color is formed thereon. Will be. On the other hand, the thickness of the colored layer may be different for each color depending on the type of the coating liquid for forming the colored layer. Therefore, even when the transparent resin layer is formed, the gap between the color filter for the transflective liquid crystal display device and the counter substrate in the reflected light region and the transflective liquid crystal display device in the transmitted light region It may be difficult to make the ratio between the color filter for use and the gap with the counter substrate within a predetermined range in all color regions.

However, according to the present invention, the gap on the transmitted light region side can be adjusted by, for example, making the thickness of the planarizing layer different for each colored layer. Therefore, when used in a transflective liquid crystal display device, a color filter for a transflective liquid crystal display device capable of higher quality display can be obtained.
Hereinafter, each configuration of the color filter for a transflective liquid crystal display device of the present invention will be described in detail.

1. Flattening Layer First, the flattening layer used in the color filter for a transflective liquid crystal display device of the present invention will be described. The flattening layer used in the present invention is formed on the colored layer in the transmitted light region of the color filter for a transflective liquid crystal display device, has transparency to visible light, and is a colored layer. There is no particular limitation as long as the unevenness on the surface can be reduced. For example, the color filter for the transflective liquid crystal display device of the present invention may be formed on the colored layer in all the transmitted light regions, or on the colored layer in a part of the transmitted light region. May be formed only. Further, for example, flattening layers having different thicknesses may be formed on the colored layers of the respective colors.

  In the present invention, the average film thickness of the planarizing layer is preferably about 0.3 μm to 5.0 μm, and more preferably about 0.5 μm to 2.0 μm. This is because by setting it within such a range, it becomes possible to flatten the dent generated on the surface of the colored layer, adjust the gap in the transmitted light region, and the like. The film thickness of the planarization layer can be calculated from, for example, a cross-sectional shape of a color filter for a transflective liquid crystal display device taken with a scanning electron microscope (SEM) or the like.

  The method for forming the flattening layer is not particularly limited as long as it can be formed with high definition only in a target transmitted light region, and a general photolithography method or the like is used. be able to. Moreover, in this invention, when forming the said planarization layer, it is preferable to adjust the viscosity at the time of drying or hardening the planarization layer, etc., adjusting the viscosity of the coating liquid for planarization layer formation. For example, it is possible to further flatten the dents on the surface of the colored layer by reducing the viscosity of the flattening layer forming coating solution for forming the flattening layer. Further, for example, by lengthening the time for drying or curing the planarizing layer, the planarizing layer forming coating liquid can be leveled, and the unevenness of the colored layer surface can be further reduced. In addition, these conditions are suitably selected according to the kind of coating liquid for planarization layer formation, the state of a colored layer, etc.

  Examples of the material used for forming the planarizing layer include photosensitive acrylic resin, photosensitive polyimide, positive resist, cardo resin, polysiloxane, benzocyclobutene, and the like.

2. Next, the colored layer used in the color filter for a transflective liquid crystal display device of the present invention will be described. The colored layer used in the present invention is formed so as to cover a transparent substrate described later and a transparent resin layer described later, and the portion laminated with the transparent substrate and the transparent resin layer is used for displaying reflected light. The portion where the transparent resin layer is not formed and the colored layer is formed on the transparent substrate is used for display of transmitted light.

  Here, in the present invention, when the average thickness of the colored layer formed on the transparent resin layer, that is, the colored layer in the region used as the reflected light region is set to 1, it is formed on the transmitted light region side. It is preferable that the colored layer is formed so that the average thickness of the colored layer is in the range of 1.5 to 6, particularly in the range of 2 to 5. This is because the color characteristics of the colored layer in the reflected light region and the transmitted light region can be adjusted. Further, the specific average film thickness of the colored layer in the reflected light region is appropriately selected depending on the type of the colored layer and the like, but is usually within the range of 0.1 μm to 2.0 μm, especially 0. It is preferable to be within the range of 2 μm to 1.0 μm. The measurement of the film thickness can be performed by the same method as the method for measuring the film thickness of the planarization layer described above.

  For example, as shown in FIG. 2, the colored layer 3 (3R, 3R ′, 3G, 3G ′, 3B, and 3B ′) as described above includes a reflected light region (region indicated by a) and a pixel. The pattern to be formed is not particularly limited as long as a transmitted light region (region indicated by b) is formed. For example, a colored layer of three colors of red (R), green (G), and blue (B) is formed in a known arrangement such as a stripe type, a mosaic type, a triangle type, or a four-pixel arrangement type. The colored area can be set arbitrarily. As the area ratio between the transmitted light region and the reflected light region formed in one pixel, when the area of the transmitted light region is 1, the area of the reflected light region is 0.2 to It is preferably formed so as to be within the range of 2.0, particularly within the range of 0.4 to 1.4.

  The colored layer as described above can be formed using a pigment dispersion method or the like used for the formation of a general colored layer, and the materials used for the formation of the colored layer can also be used for a general color filter. It can be the same as that used for formation of a colored layer.

3. Transparent resin layer Next, the transparent resin layer used for the color filter for transflective liquid crystal display devices of this invention is demonstrated. The transparent resin layer used in the present invention is formed in a pattern on a transparent substrate described later, and is formed only in the reflected light region.

  As such a transparent resin layer, it is possible to adjust a gap of a reflected light region when a color filter for a transflective liquid crystal display device is arranged to face a counter substrate, There is no particular limitation as long as the thickness of the colored layer formed in the region can be adjusted. As such a transparent resin layer, for example, the cross-sectional shape can be rectangular or trapezoidal, and the same shape as that of a transparent resin layer used in a general color filter for a transflective liquid crystal display device is used. It can have.

  The film thickness of the transparent resin layer is appropriately selected depending on the kind of the colored layer described above, etc., but the average film thickness of the transparent resin layer is usually in the range of 1 μm to 6 μm, particularly 2 μm to 5 μm. It is preferable to be within the range. The measurement of the film thickness can be performed by the same method as the method for measuring the film thickness of the planarization layer described above.

  Here, the material used for the transparent resin layer as described above may be any material that is transparent to external light incident on the color filter for the transflective liquid crystal display device and reflected light from which the external light is reflected. It is not particularly limited. Examples of the material used for such a transparent resin layer include photosensitive acrylic resin, photosensitive polyimide, positive resist, cardo resin, polysiloxane, benzocyclobutene, and the like. Moreover, as a formation method of the said transparent resin layer, it is possible to form by the photolithographic method etc. using the said material.

4). Transparent substrate Next, the transparent substrate used in the present invention will be described. The transparent substrate used in the present invention is not particularly limited as long as it can form the transparent resin layer and the colored layer and is transparent to visible light, and is used for a general color filter. It can be the same as the transparent substrate.

  Specifically, a transparent rigid material having no flexibility such as quartz glass, Pyrex (registered trademark) glass, synthetic quartz plate, or a transparent flexible flexible material such as a transparent resin film or an optical resin plate. Materials and the like.

5). Next, a color filter for a transflective liquid crystal display device according to the present invention will be described. The color filter for a transflective liquid crystal display device of the present invention is not particularly limited as long as it has the transparent substrate, the transparent resin layer, the colored layer, and the planarizing layer. You may have suitably a protective layer etc. as needed. Also, columnar spacers or the like may be formed.

  In the present invention, the difference between the average height from the transparent substrate surface to the colored layer surface or the planarizing layer surface in the transmitted light region and the average height from the transparent substrate surface to the colored layer surface in the reflected light region is It is preferably about 1 μm to 3 μm, and more preferably about 1.2 μm to 2.7 μm. Thereby, when the color filter for the transflective liquid crystal display device is used in the transflective liquid crystal display device, due to the difference in cell gap between the counter substrate and the color filter for the transflective liquid crystal display device, This is because the optical path difference between the reflected light region and the transmitted light region can be adjusted.

B. Next, the transflective liquid crystal display device of the present invention will be described. The transflective liquid crystal display device of the present invention is not particularly limited as long as the transflective liquid crystal display device has the above-described color filter for transflective liquid crystal display. It can be set as the same structure. Specifically, the color filter for a transflective liquid crystal display device, a counter substrate disposed opposite to the liquid crystal, liquid crystal sealed between the counter substrate, and external light formed in a pattern are used. It can be a thing which has a reflecting plate for reflecting.

  According to the present invention, since the color filter for the transflective liquid crystal display device is used, the alignment of the liquid crystal sealed between the counter substrate and the color filter for the transflective liquid crystal display device is caused by a dent or the like on the surface of the colored layer. A liquid crystal display device that can be undisturbed and capable of high-quality display can be obtained.

  The members used in the transflective liquid crystal display device are not limited to those described above. For example, an alignment film, a transparent electrode layer, and the like can be appropriately provided as necessary.

  The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.

  The following examples illustrate the present invention more specifically.

[Example 1]
(Formation of black matrix)
As a transparent substrate, a glass substrate (Corning Corporation 1317 glass) having a size of 300 mm × 400 mm and a thickness of 0.7 mm was prepared. This transparent substrate was washed according to a conventional method, and a chromium thin film (thickness 1600 mm) was formed on one side of the transparent substrate by sputtering. A positive photosensitive resist (OFPR-800 manufactured by Tokyo Ohka Kogyo Co., Ltd.) was applied on the chromium thin film, and exposed through a predetermined mask to form a resist pattern. Next, the chromium thin film was etched using this resist pattern as a mask to form a black matrix having a line width of 10 μm and a pitch of 105 μm.

(Formation of transparent resin layer)
Subsequently, a transparent resin layer forming coating solution having the following composition was applied onto the transparent substrate and dried. This transparent resin layer forming coating solution was exposed through a predetermined photomask (light-shielding portion 55 μm and opening 50 μm) and developed. Thereafter, it was baked at 230 ° C. for 30 minutes to form a transparent resin layer having a width of 50 μm. At this time, the average film thickness of the transparent resin layer was 4.0 μm.

[Coating liquid for forming transparent resin layer]
· Methyl methacrylate-styrene-methacrylic acid copolymer ··· 42 parts by weight · Epicoat 180s70 (Mitsubishi Yuka Shell Co., Ltd.) ··· 18 parts by weight · Pentaerythritol pentaacrylate ··· 32 parts by weight · Irgacure 907 (Ciba Specialty Chemicals Co., Ltd.) 8 parts by weight Propylene glycol monomethyl ether acetate 300 parts by weight

(Formation of red colored layer)
A coating solution for forming a colored layer (negative photosensitive resin composition) for the red colored layer having the following composition was applied on the transparent substrate by a spin coating method so as to cover the black matrix and the transparent resin layer. . Subsequently, exposure and development were performed using the red pattern photomask. Then, the red colored layer was formed by baking. The average thickness of the red colored layer in the reflected light region was 0.4 μm, and the average thickness of the red colored layer in the transmitted light region was 1.2 μm. In addition, the film thickness is thin at the center of the transmitted light region, and the portion where the film thickness is minimum in this portion (dent) and the portion where the film thickness is maximum within the transmitted light region. The film thickness difference was 0.8 μm. Each said film thickness was computed from what image | photographed the cross-sectional shape of the red colored layer with the scanning electron microscope (SEM).
When the average thickness of the red colored layer in the reflected light region was 1, the average thickness of the red colored layer in the transmitted light region was 3.0. The difference between the average height from the transparent substrate surface to the red colored layer surface in the transmitted light region and the average height from the transparent substrate surface to the red colored layer surface in the reflected light region was 3.2 μm. .

[Red colored layer forming coating solution]
・ Red pigment (Chromophthal Red A2B, manufactured by Ciba Specialty Chemicals)
... 4.8 parts by weight, yellow pigment (Pariotor Yellow D1819, manufactured by BASF) ... 1.2 parts by weight, dispersant (Disperbic 161, manufactured by Big Chemie) ... 3.0 parts by weight, monomer ( SR 399 manufactured by Sartomer Co., Ltd.) 4.0 parts by weight, Polymer I, 5.0 parts by weight, Irgacure 907 (manufactured by Ciba Specialty Chemicals), 1.4 parts by weight, (2, 2 ' -Bis (o-chlorophenyl) -4,5,4 ', 5'-tetraphenyl-1,2'-biimidazole) ... 0.6 parts by weight ・ Propylene glycol monomethyl ether acetate ... 80.0 parts by weight Part * Polymer I is a co-weight of benzyl methacrylate: styrene: acrylic acid: 2-hydroxyethyl methacrylate = 15.6: 37.0: 30.5: 16.9 (molar ratio) To the body 100 mol%, is obtained by adding 2-methacryloyloxy 16.9 mole percent acryloyloxyethyl isocyanate, weight average molecular weight is 42500.

(Formation of green colored layer)
On the transparent substrate on which the red colored layer has been formed, a green colored layer-forming coating solution (negative photosensitive resin composition) for the green colored layer having the following composition is used to produce a green color in the same manner as the red colored layer. A colored layer was formed. The average film thickness of the green colored layer in the reflected light region was 0.4 μm, and the average film thickness of the green colored layer in the transmitted light region was 1.4 μm. In addition, the film thickness is thin at the center of the transmitted light region, and the portion where the film thickness is minimum in this portion (dent) and the portion where the film thickness is maximum within the transmitted light region. The film thickness difference was 0.6 μm. The film thickness was calculated from the cross-sectional shape of the green colored layer taken with a scanning electron microscope (SEM) or the like.
When the average film thickness in the reflected light region was 1, the average film thickness in the transmitted light region was 3.5. Further, the difference between the average height from the transparent substrate surface to the green colored layer surface in the transmitted light region and the average height from the transparent substrate surface to the green colored layer surface in the reflected light region was 3.0 μm. It was.

[Coating liquid for forming green colored layer]
Green pigment (Avisia Monastral Green θY-C) ... 4.2 parts by weight Yellow pigment (BASF Pariotor Yellow D1819) ... 1.8 parts by weight Dispersant (Big Chemie Disper) BIC 161) ... 3.0 parts by weight / monomer (SR399, manufactured by Sartomer) ... 4.0 parts by weight / polymer I ... 5.0 parts by weight / Irgacure 907 (manufactured by Ciba Specialty Chemicals)・ ・ ・ 1.4 parts by weight ・ (2,2′-bis (o-chlorophenyl) -4,5,4 ′, 5′-tetraphenyl-1,2′-biimidazole) ・ ・ ・ 0.6 weight Parts ・ Propylene glycol monomethyl ether acetate ・ ・ ・ 80.0 parts by weight

(Formation of blue colored layer)
Similar to the red colored layer on the transparent substrate on which the red colored layer and the green colored layer are formed, using a colored layer forming coating liquid (negative photosensitive resin composition) for the blue colored layer having the following composition: A blue colored layer was formed by the method described above. The average thickness of the blue colored layer in the reflected light region was 0.5 μm, and the average thickness of the blue colored layer in the transmitted light region was 2.0 μm. In addition, the film thickness is thin at the center of the transmitted light region, and the portion where the film thickness is minimum in this portion (dent) and the portion where the film thickness is maximum within the transmitted light region. The film thickness difference was 0.3 μm. The film thickness was calculated from the cross-sectional shape of the green colored layer taken with a scanning electron microscope (SEM) or the like.
When the average film thickness in the reflected light region was 1, the average film thickness in the transmitted light region was 4.0. Furthermore, the difference between the average height from the transparent substrate surface to the blue colored layer surface in the transmitted light region and the average height from the transparent substrate surface to the blue colored layer surface in the reflected light region was 2.5 μm. It was.

[Blue colored layer forming coating solution]
-Blue pigment (BASF Heiogen Blue L6700F)-6.0 parts by weight-Pigment derivative (Avicia Solsperse 6000)-0.6 parts by weight-Dispersant (Bic Chemie Dispersic 161) 2.4 parts by weight / monomer (SR399 manufactured by Sartomer Co., Ltd.) 4.0 parts by weight Polymer I 5.0 parts by weight Irgacure 907 (Ciba Specialty Chemicals) 1.4 Parts by weight · (2,2′-bis (o-chlorophenyl) -4,5,4 ′, 5′-tetraphenyl-1,2′-biimidazole)... 0.6 parts by weight propylene glycol monomethyl ether Acetate: 80.0 parts by weight

(Formation of planarization layer)
Subsequently, a flattening layer forming coating solution using the same material as the transparent resin layer forming coating solution was applied on the red colored layer and the green colored layer, and dried. The flattening layer forming coating solution was exposed through a predetermined photomask and developed. Then, it baked at 230 degreeC for 30 minutes, and formed the planarization layer only in the area | region for the transmitted light of the said red colored layer and a green colored layer.
The average film thickness of the flattening layer formed on the red colored layer was 0.7 μm. Further, the depression at the center of the transmitted light region is improved, the maximum film thickness from the transparent substrate surface to the planarizing layer surface in the transmitted light region, and the transparent substrate surface to the planarized layer in the transmitted light region. The difference from the minimum film thickness up to the surface was 0.4 μm. The difference between the average height from the transparent substrate surface to the planarizing layer surface in the transmitted light region and the average height from the transparent substrate surface to the planarizing layer surface in the reflected light region was 2.5 μm. .
Moreover, the average film thickness of the planarization layer formed on the said green colored layer was 0.5 micrometer. Further, the depression at the center of the transmitted light region is improved, the maximum film thickness from the transparent substrate surface to the planarizing layer surface in the transmitted light region, and the transparent substrate surface to the planarized layer in the transmitted light region. The difference from the minimum film thickness to the surface was 0.3 μm. Furthermore, the difference between the average height from the transparent substrate surface to the planarization layer surface in the transmitted light region and the average height from the transparent substrate surface to the planarization layer surface in the reflected light region was 2.5 μm. It was.

It is a schematic sectional drawing which shows the color filter for transflective liquid crystal display devices of this invention. It is a top view which shows the color filter for transflective liquid crystal display devices of this invention. It is a schematic sectional drawing which shows the conventional color filter for transflective liquid crystal display devices. It is a schematic sectional drawing explaining the conventional transflective liquid crystal display device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Transparent substrate 2 ... Transparent resin layer 3 ... Colored layer 4 ... Flattening layer

Claims (2)

A transparent substrate; a transparent resin layer formed in a pattern on the transparent substrate; and a colored layer formed so as to cover the transparent substrate and the transparent resin layer, the transparent substrate and the transparent resin layer And a color filter for a transflective liquid crystal display device using a region where the colored layer is laminated as a reflected light region and a region where the transparent substrate and the colored layer are laminated as a transmitted light region. ,
It is necessary to adjust the ratio between the color filter for the transflective liquid crystal display device and the counter substrate in the reflected light region and the gap between the color filter for the transflective liquid crystal display device and the counter substrate in the transmitted light region. A color filter for a transflective liquid crystal display device , wherein a planarizing layer is formed only on a colored layer of a part of the color formed in the transmitted light region.   A transflective liquid crystal display device comprising the color filter for transflective liquid crystal display according to claim 1.

Images